W912HN21S5002 – Sources Sought – Marsh Restoration for the Savannah Harbor Expansion Project (SHEP)

Oct 23, 2020 | Sources Sought

This is a Sources Sought/Request for Information only.  This is not a Solicitation Announcement, nor is it a Request for Proposal.  This request does not obligate the Government in any contract award.  The U.S. Army Corps of Engineers, Savannah District is issuing the sources sought synopsis as a means of conducting market research to identify parties having an interest in and the resources to support the requirement for civil works construction.  The result of this market research will contribute to determining the method of procurement.  The applicable North American Industry Classification System (NAICS) code assigned to this procurement is 237990.  

The contractor will complete the restoration of approximately 29 acres of brackish marsh, including excavation of material and creation of feeder creeks to enable tidal connectivity on the site.  This work is part of the required mitigation plan for the Savannah Harbor Expansion Project (SHEP).  The marsh restoration includes excavation and grading of a designated area on Onslow Island (Northing: 782,928.2516; Easting: 974,087.2680), within the Savannah River at the confluence of the Front River and Middle River and is within the boundaries of the Savannah National Wildlife Refuge.  The site is owned and managed by the US Fish and Wildlife Service (USFWS).  Access to the project site is by water only.

During excavation for marsh restoration, feeder creeks will be excavated to tie into adjacent bodies of water.  The extent of the marsh restoration areas will begin at the toe of excavated 3H:1V cut slopes.  Some additional, incidental work should be anticipated to establish vegetation across the face of the 3H:1V cut slopes.  The final elevation for the marsh restoration is approximately +7.6’ mean lower low water (mllw).  The project includes installation and removal of silt fence and other erosion control measures, clearing and grubbing, marsh restoration and feeder creek excavation, and removal/disposal of excavated materials from the site.  

Savannah River channel dredging operations will be ongoing during this contract and there may be commercial or Government contractor vessel traffic near the project site during the construction period.  The location of excavated material disposal will be coordinated by the Government but may include disposal in the Government’s upland dredged material containment areas located along the Back River or in-water disposal in the Sediment Basin area of the Back River.

During the Pre-construction, Engineering and Design phase of SHEP, the Corps conducted three sampling events to identify potential contamination of sediments in the vicinity of Dredged Material Containment Area 1S (DMCA 1S). The results of that sampling and analysis indicate that there are portions of the old disposal area that are unsuitable for the wetland restoration identified in the SHEP Final Environmental Impact Statement (FEIS), containing polycyclic aromatic hydrocarbons (PAHs).  Using the results of the follow-on sediment sampling, the Corps reconfigured the restoration boundary and feeder creek system to avoid areas with sediments containing high PAH levels that would otherwise be exposed after construction.

If you are interested in this project and/or your organization has the potential capacity to perform these services, please submit the following to the Point of Contacts (POC) information listed below:

  1. Name and Address of your Firm
  2. Point of Contact (name/phone/email)
  3. Company website
  4. Data Universal Numbering System (DUNS) number (http://www.dnb.com)
  5. Commercial and Government Entity (CAGE) code (http://www.dlis.dla.mil/cage_welcome.asp)
  6. Business Size, to include designation as HUBZone, 8(a), Service Disabled Veteran Owned Small Business, Small Disadvantaged Business, Woman-Owned Business, and Large Business.  The Government must be able to verify SBA certification of HUBZone, 8(a), and SDB via the System for Award Management (SAM) (http://www.beta.sam.gov/)
  7. Bonding capability for your firm in terms of single and aggregated bonding
  8. Capability statement addressing the particulars of this effort, with appropriate documentation supporting claims of organizational and staff capability.  Please state if you have experience in performing heavy civil construction, mechanical dredging and the use of barges for hauling of sediments/dredged material for both upland confinement or in-river placement.  If significant subcontracting (self-performance is less than 15%) or teaming is anticipated in order to deliver technical capability, organizations should address the administrative and management structure of such arrangements to include the percentage anticipated to be self-performed by each party.

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